I’ve had quite a few comments (from people I tell about the tagging program) that it’s incredibly hard to notice a tag on a monarch. And especially if it is flying. The crux is that due to the plain white colour with black font many have said it doesn’t stand out/ catch your eye. The underside of the wing is slightly paler so I can understand how the tag blends in with the black patterns on wing as well.

I can envisage the reply to this will be that a coloured tag will be more expensive, and it may affect the butterfly mating or make it a target for predators.